Wei Mi is a Ph.D. candidate in the Key Laboratory of Computer System and Architecture, Institute of Computing Technology, Chinese Academy of Sciences. His research interests include compiler and com- puter architecture. He received his Bachelor's degree in computer science from University of Science and Technology of China in 2003.E-mail:miwei@ict.ac.cn; Xiao-Bing Feng was born in 1969. He received his B.E. degree from Tianjin University in 1992, M.S. degree from Peking University in 1996 and Ph.D. degree from the Institute of Computing Technology OCT), Chinese Academe of Sciences (CAS). He is currently a professor of the Key Laboratory of Computer System and Architecture. ICT. CAS.His research interests include program analysis, compiler and tools.E-mail:fxb@ict.ac.cn Yao-Cang Jia is a Ph.D. candidate in the Key Laboratory of Computer System and Architecture, ICT, CAS. His research interests include in the compiler and dynamic optimization. He received his Bachelor's degree in computer science from Northwestern Polytechnical University in 2003. E-mail:jiayaocang@ict.ac.cn Li Chen was born in 1970. She received her B.E. and M.E. degrees from Shandong University of Science and Technology in 1992 and 1995 respectively, and Ph.D. degree from ICT, CAS, where she is currently an assistant professor. Her research interests include parallel optimization and environment.E-mail:lchen@ict.ac.cn Jing-Ling Xue is a professor of computer science and engineering at the University of New South Wales. He received his B.Eng and M.Eng degrees in computer science and engineering from Tsinghua University in 1984 and 1987, respectively. He received his Ph.D. degree in computer science and engineering from Edinburgh University in 1992. He leads the Programming Languages and Compilers Group and its subgroup Compiler Research Group (CORG) at UNSW. His research interests are programming languages, compiler optimisations, computer architecture, parallel computing, distributed systems and cluster